BIOLOGY. 
Verm, 19 
Body Cavity and its Contents, Parenchyme, Glands, &c. 
Special organs of communication between the segments, and openings 
of coelomic cavity to the exterior in Owcnia ; Gilson. — Lymphatic 
glands of Nereis shown to be true glands, and not aggregates of leuco- 
cytes ; Kowalevsky, A. (4). 
Coelomic fluid of the Earthworm and its function; regulation of the 
dorsal pores by the nervous system ; Keng. — Special organs, of two 
kinds, for clearing the coelomic fluid of dead matter (phagocyte organs), 
their arrangement in those Oligochsetes in which they are present, 
and comparison with similar organs in certain Polychaetes and in Hirudo 
respectively; Schneider (1) & (2). — Phagocyte organs in Leeches, 
thirteen pairs in a Clepsine ; Kowalevsky, A. (2). 
Lymphocytes of Oligochsetes, 4 kinds distinguished (mucocytes, eleo- 
cytes, amaebocytes, and vacuolocytes) : their distribution in different 
species, and their origin, (criticising Cuenot) ; Rosa (1). — Coelomic cor- 
puscles of three kinds, one containing a long coiled thread, in an Enchy- 
traeid ; Goodrich. 
“Coelomic” nature of body cavity in a Leech, Acanthobdella pellucida, 
and structure of pigment cells and giant gland-cells embedded in connec- 
tive tissue ; Kowalevsky, A. (1). — “ Acid-cells ” in wall of body cavity 
of fresh- water Leeches; Kowalevsky, A. (3). 
The median dorsal gland of Haemcntaria officinalis', Bolsius (1) : 
Peripharyngeal and labial glands of Hirudo ; Bertelli (19). 
Parenchyme cells of Cestodesand Trematodes, Leeches and Nemertines; 
Blochmann. — Parenchyme of Cestodes and its development; Jammes and 
Braun (3) p. 1256. — Two layers of parenchyme in Corallobothrium ; 
Riggenbacii (1). 
Connective tissue elements of Cerebratulus, four kinds distinguished; 
“ coelom ” stated to be present in young ; Montgomery (1). 
So-called “ sub-ventral ” gland in Ascaris = sarcoplasm of oesophageal 
muscles; Looss (1). 
Vascular System and its Contents. 
Connection with coelom in Phytlodocidm ; Gravier. — Heart and “ Herz- 
korper” of P olyophthalmus ; Monticelli (2). — Arrangement of vessels 
to branchiae in Ampharetidce ; Fauvel (1). — The blood of Magelona ; 
Beniiam (2). — Parasites in vascular system of Serpulids ; Malaquin. 
Vessels to alimentary canal and in sucker in Acanthobdella ; Kowa- 
levski, A. (1). 
Respiratory Organs. 
Arrangement of branchiae in the Ampharetidce, and their homologies ; 
Fauvel (1). — Structure of branchiae of a new Serpulid ; M^snil & 
Oaullery (2). 
Excretory System. 
Nephridia of Arenicola ; Kyle. — Modifications of different parts of the 
nephridia to serve as phagocyte organs in Oligochaetes (with the exception 
of Perichceta) and in Leeches, and other organs (modified portions of 
coelomic epithelium) for the same purpose (see under Body Cavity, &c.) 
in Oligochaetes; Schneider (1) & (2). — Nephridia of a new species of 
Enchytrceus ; Goodrich. — Structure of nephridia of Branchiobdella , 
